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प्रश्न
Explain the following terms:
Incident ray, Reflected ray, Angle of incidence, Angle of reflection, Normal.
उत्तर
incident ray— The ray of light falling on the surface AB is called the incident ray. In the following figure, PN is the incident ray.
Reflected ray— The incident ray bouncing back in the same medium after striking the reflecting surface is called a reflected ray. In the following figure, NQ is the reflected ray.
Angle of incidence - The angle formed between the incident ray and the normal is the angle of incidence. (PNM is the angle of incidence.)
Angle of reflection - The angle formed between the normal and the reflected ray is called angle of reflection (MNQ is the angle of reflection)
Normal - It is the line drawn perpendicular to the reflecting surface at the point of incidence. MN is normal.
APPEARS IN
संबंधित प्रश्न
Write true or false of the following statement.
The image formed by a plane mirror is upright.
Fill in the blank
The incident ray, the reflected ray and the normal lie in one _______
Draw a ray diagram showing the formation of image of a point object by a plane mirror.
Define the following term
Normal
Define the following term
Angle of incidence
Light is falling on surfaces S1 S2 and S3 as shown in the figure.
|
Surface S1 |
|
Surface S2 |
|
Surface S3 |
Surfaces on which the angle of incidence is equal to the angle of reflection is/are
Two mirrors A and B are placed at right angles to each other as shown in the figure.
A ray of light incident on mirror A at an angle of 25° falls on mirror B after reflection. The angle of reflection for the ray reflected from mirror B would be
Draw figure showing the position of the plane mirror. Also, label the angle of incidence and angle of reflection on it.
The angle formed between the reflected ray and the normal is ______.
Diffused reflection gives a sharp image.
